Product information:

Material: metal + plastic
Color: red, green, blue

Specification 16*17.5cm
When reading and writing, the book is usually laid flat, the body gradually leans forward, the neck bends forward, the eyes are very easy to fatigue, causing myopia. This product keeps books or files upright at a certain angle (automatically adjusts the back of the product) to maintain the correct reading posture, eliminates the fatigue of reading, and can prevent myopia.